How many SO users, as a percentage, do you think have any idea about MSE? vs, how many know about MSO?
– OdedJul 1 '16 at 16:15

@Oded What do you mean? The linked meta SO post is at least 17 days old. It's a feature-request for entire SE, and now it's even status-completed. Why didn't anyone migrate it to meta SE yet?
– NVZJul 1 '16 at 16:16

It is also important to know that the age of the post is a factor. Before April 2014, MSO and MSE were a single site (called Meta.StackOverflow). They were then split into the separate sites that exist today. But only current relavant posts about MSO were moved to the current MSO. The older posts were left alone since migrating them didn't seem to serve a purposes. But some important material was migrated regardless of age, so you end up with some MSO posts linking to MSE posts and the other way around.
– psubsee2003Jul 1 '16 at 16:42

1 Answer
1

Users are not required to post on MSE any time anything they discuss might have implications for other sites.

Users are encouraged to post on the meta site on the site(s) they are active participants in, so that they can discuss ideas among their community.

While it's certainly acceptable to post on MSE if you know that the question isn't necessarily related to just your community, you certainly aren't required to. Additionally, discussions about a topic or proposal among a community won't be migrated to MSE just because they might impact other communities. Someone may create a new question on MSE, if they feel that it's important for members of other communities to weigh in, at their own discretion, but discussions among a community will stay in that community's meta.